SSM2380CBZ-REEL

Overview

The SSM2380CBZ-REEL is a fully integrated, high-efficiency stereo Class-D audio amplifier from Analog Devices Inc. It operates on a single supply voltage ranging from 2.5 V to 5.5 V and delivers up to 2 W into a 4 Ω load or 1.4 W into an 8 Ω load at 5.0 V with less than 1% THD+N. The device utilizes spread-spectrum Σ-Δ modulation for filterless operation, achieving 93% efficiency at 1.4 W output into an 8 Ω speaker. It features ultralow shutdown current of 20 nA, pop-and-click suppression, and built-in thermal and short-circuit protection.

Feature Summary

• Filterless stereo Class-D architecture using spread-spectrum Σ-Δ modulation to minimize external components and reduce EMI emissions without requiring output filters.
• Highly flexible control interface supporting I2C configuration, hardware gain selection, and automatic level control (ALC) modes via the MODE pin.
• Integrated protection mechanisms including thermal shutdown, output short-circuit protection, and pop-and-click suppression circuitry for noiseless activation.

Applications

• Mobile phones
• MP3 players
• Portable electronics

Procurement Notes

Verify the specific ordering suffix REEL against the manufacturer's official documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with the required operating temperature range of −40°C to +85°C. Confirm that the 16-ball WLCSP package dimensions align with the target PCB layout constraints. Cross-reference the datasheet revision A specifications for electrical parameters such as supply voltage and output power ratings.

Selection Notes

Select this component for applications requiring high efficiency and minimal external component count in space-constrained designs. The device supports multiple operating modes, allowing designers to choose between I2C programmability, fixed gain settings, or automatic level control based on system requirements. Consider the ultralow shutdown current for battery-powered devices where power conservation is critical during standby modes.

Part Context

The SSM2380 is part of Analog Devices' portfolio of high-efficiency audio amplifiers designed for mobile and portable applications. It belongs to the Class-D amplifier category, utilizing sigma-delta modulation technology. The CBZ-REEL designation indicates the specific wafer-level chip scale package and reel packaging format for surface-mount assembly.

Replacement Considerations

Consult the manufacturer's official documentation for verified substitute part numbers. Do not assume cross-compatibility with other Class-D amplifiers without verifying pinout, electrical specifications, and control interface compatibility.

FAQ

How does the SSM2380 handle EMI without output filters?

The SSM2380 uses spread-spectrum Σ-Δ modulation, which reduces high-frequency spectral components and EMI emissions. For speaker cables longer than 10 cm, an emission limiting mode can be activated to further suppress radiated emissions.

What are the available operating modes for the SSM2380?

The SSM2380 offers three operating modes controlled by the MODE pin: I2C control mode (MODE = GND), Gain Select mode (MODE = VDD), and Automatic Level Control (ALC) mode (MODE floating).

Does the SSM2380 include protection against output faults?

Yes, the device includes built-in thermal shutdown and output short-circuit protection to safeguard the amplifier and connected loads under fault conditions.